Tools & Wizards About Us
bilibili.tv screenshot

Report Summary

  • 42

    Performance

    Renders faster than
    63% of other websites

  • 62

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    82% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

Page Load Speed

24.7 sec in total

First Response

468 ms

Resources Loaded

22.9 sec

Page Rendered

1.3 sec

bilibili.tv screenshot

About Website

Visit bilibili.tv now to see the best up-to-date Bilibili content for Indonesia and also check out these interesting facts you probably never knew about bilibili.tv

Visit bilibili.tv

Key Findings

We analyzed Bilibili.tv page load time and found that the first response time was 468 ms and then it took 24.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

bilibili.tv performance score

42

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value17.4 s

0/100

25%

SI (Speed Index)

Value9.0 s

14/100

10%

TBT (Total Blocking Time)

Value290 ms

80/100

30%

CLS (Cumulative Layout Shift)

Value0.032

100/100

15%

TTI (Time to Interactive)

Value15.3 s

7/100

10%

Network Requests Diagram

bilibili.tv

468 ms

www.bilibili.com

326 ms

jquery-ui.css

1201 ms

page-core.css

1267 ms

jquery.min.js

1308 ms

Our browser made a total of 132 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Bilibili.tv, 32% (42 requests) were made to I0.hdslb.com and 20% (27 requests) were made to Static.hdslb.com. The less responsive or slowest element that took the longest time to load (20 sec) relates to the external source Tajs.qq.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 839.4 kB (36%)

Content Size

2.3 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bilibili.tv main page is 2.3 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 99.2 kB

  • Original 123.6 kB
  • After minification 121.9 kB
  • After compression 24.4 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 99.2 kB or 80% of the original size.

Image Optimization

-6%

Potential reduce by 86.3 kB

  • Original 1.3 MB
  • After minification 1.2 MB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Bilibili images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 413.0 kB

  • Original 578.4 kB
  • After minification 571.6 kB
  • After compression 165.4 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 413.0 kB or 71% of the original size.

CSS Optimization

-83%

Potential reduce by 240.9 kB

  • Original 289.8 kB
  • After minification 284.7 kB
  • After compression 49.0 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Bilibili.tv needs all CSS files to be minified and compressed as it can save up to 240.9 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (18%)

Requests Now

97

After Optimization

80

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 97 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bilibili. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

bilibili.tv

bilibili.tv

468 ms

www.bilibili.com

www.bilibili.com

326 ms

jquery-ui.css

jquery-ui.css

1201 ms

page-core.css

page-core.css

1267 ms

jquery.min.js

jquery.min.js

1308 ms

jquery-ui.min.js

jquery-ui.min.js

1495 ms

base.core.js

base.core.js

1621 ms

index.css

index.css

1196 ms

page.core.js

page.core.js

1305 ms

page.index.js

page.index.js

1304 ms

getHeader

getHeader

100 ms

online.js

online.js

194 ms

picment.min.js

picment.min.js

59 ms

ding-count.json

ding-count.json

354 ms

icons.png

icons.png

306 ms

b-post.png

b-post.png

36 ms

app-link.png

app-link.png

36 ms

app-box.png

app-box.png

303 ms

app-qrcode.png

app-qrcode.png

297 ms

f8b8a81381b7022e1ac64655d89ba118.png

f8b8a81381b7022e1ac64655d89ba118.png

2081 ms

4dcf2517f3ebb966934d6e394c7829ec.png

4dcf2517f3ebb966934d6e394c7829ec.png

2826 ms

slideshow.json

slideshow.json

234 ms

download.png

download.png

1704 ms

icons2.png

icons2.png

138 ms

bangumi-weekday.png

bangumi-weekday.png

494 ms

b-taobao.png

b-taobao.png

139 ms

footpic.gif

footpic.gif

136 ms

wx-arrow.png

wx-arrow.png

138 ms

weibo-qrcode.png

weibo-qrcode.png

139 ms

wx.jpg

wx.jpg

162 ms

tv_animate.png

tv_animate.png

1983 ms

oYYBAFcHgA2AdY6kAADqLh6P_HE927.jpg

oYYBAFcHgA2AdY6kAADqLh6P_HE927.jpg

1889 ms

oYYBAFcHZriAQWOvAAEtOk6W5MI783.jpg

oYYBAFcHZriAQWOvAAEtOk6W5MI783.jpg

1889 ms

oYYBAFcGBLWAEF6KAACusV89_Gw853.jpg

oYYBAFcGBLWAEF6KAACusV89_Gw853.jpg

1859 ms

oYYBAFcEmk-AT5EIAAIeEW0HA44023.png

oYYBAFcEmk-AT5EIAAIeEW0HA44023.png

1977 ms

oYYBAFcDVXOAHdgtAAByjxvOpOk124.jpg

oYYBAFcDVXOAHdgtAAByjxvOpOk124.jpg

1911 ms

oYYBAFcB62WAA2gMAACd-z2xAvI336.jpg

oYYBAFcB62WAA2gMAACd-z2xAvI336.jpg

2106 ms

ranking-3day.json

ranking-3day.json

629 ms

promote.json

promote.json

594 ms

12.json

12.json

507 ms

recom

recom

263 ms

ding.json

ding.json

503 ms

1-3day.json

1-3day.json

402 ms

13-3day.json

13-3day.json

347 ms

index-bangumi-timeline.json

index-bangumi-timeline.json

439 ms

nav.js

nav.js

643 ms

index-icon.json

index-icon.json

418 ms

getSearchDefaultWords

getSearchDefaultWords

909 ms

loc

loc

588 ms

loc

loc

507 ms

loc

loc

586 ms

loc

loc

503 ms

rec.js

rec.js

893 ms

bfd.js

bfd.js

972 ms

stat.php

stat.php

1752 ms

stats

stats

19954 ms

loading.gif

loading.gif

72 ms

41.json

41.json

1641 ms

api_proxy

api_proxy

1326 ms

20.json

20.json

508 ms

21.json

21.json

630 ms

31.json

31.json

703 ms

oYYBAFaVDe6ADmhZAAEHj20x4XY276.jpg_320x200.jpg

oYYBAFaVDe6ADmhZAAEHj20x4XY276.jpg_320x200.jpg

286 ms

a9e77947dfb4e2aeccde58b3c29d022b382c3e8f.jpg

a9e77947dfb4e2aeccde58b3c29d022b382c3e8f.jpg

1464 ms

80f74a5c3d85368e41c81f76dbdec7c638b205c6.jpg

80f74a5c3d85368e41c81f76dbdec7c638b205c6.jpg

1490 ms

0bdf7f5b8afa53c112d5a2e2876842b0567204fa.jpg

0bdf7f5b8afa53c112d5a2e2876842b0567204fa.jpg

1343 ms

b508afdc5403b191d933e41e190488fb16552d15.jpg

b508afdc5403b191d933e41e190488fb16552d15.jpg

1371 ms

cfe47b1d3c46504616b4b2bca21000d83ce9eef3.jpg

cfe47b1d3c46504616b4b2bca21000d83ce9eef3.jpg

1494 ms

21f45e192388a6351749334feb60b361a81719f6.jpg

21f45e192388a6351749334feb60b361a81719f6.jpg

1370 ms

f7cf2b25d3440c93c1b66cfd3936b46e97d839f0.jpg_320x200.jpg

f7cf2b25d3440c93c1b66cfd3936b46e97d839f0.jpg_320x200.jpg

1452 ms

dd923fa2aaa6a302f56b5480c03aa3bed9c27a0c.jpg_320x200.jpg

dd923fa2aaa6a302f56b5480c03aa3bed9c27a0c.jpg_320x200.jpg

1453 ms

447ac36a9e2862c79f818d0f5dd6453e.jpg

447ac36a9e2862c79f818d0f5dd6453e.jpg

1342 ms

5b4d7edeffaf9888071ba8e0f9b9ce99f30fbdbd.gif

5b4d7edeffaf9888071ba8e0f9b9ce99f30fbdbd.gif

1452 ms

transparent.gif

transparent.gif

183 ms

img_loading.png

img_loading.png

180 ms

oYYBAFbjmi2ATiehAAC2QT_JxI8044.jpg_320x200.jpg

oYYBAFbjmi2ATiehAAC2QT_JxI8044.jpg_320x200.jpg

1684 ms

13e301da98a50f428c47e013309f0202fa9b2609.jpg

13e301da98a50f428c47e013309f0202fa9b2609.jpg

2896 ms

oYYBAFbvpu6AYC4xAAC5gyJLWKE259.jpg_320x200.jpg

oYYBAFbvpu6AYC4xAAC5gyJLWKE259.jpg_320x200.jpg

2104 ms

711c482897a05e69bea7aa96a1b6bbe19a338696.jpg

711c482897a05e69bea7aa96a1b6bbe19a338696.jpg

1943 ms

oYYBAFb0qo6AXB1JAACAsVQRIxY941.jpg_320x200.jpg

oYYBAFb0qo6AXB1JAACAsVQRIxY941.jpg_320x200.jpg

1849 ms

oYYBAFbzig6AdWmIAAC-TnSZtPM532.jpg_320x200.jpg

oYYBAFbzig6AdWmIAAC-TnSZtPM532.jpg_320x200.jpg

1853 ms

oYYBAFbGDpqAfssxAACE634cRu8719.jpg_320x200.jpg

oYYBAFbGDpqAfssxAACE634cRu8719.jpg_320x200.jpg

1970 ms

f225eef7a4879f482b30325c4b455da4d68a395b.jpg

f225eef7a4879f482b30325c4b455da4d68a395b.jpg

1912 ms

oYYBAFb5M8eADgnuAABYqDpnXEg546.jpg_320x200.jpg

oYYBAFb5M8eADgnuAABYqDpnXEg546.jpg_320x200.jpg

1985 ms

oYYBAFbO0EqAOSNnAACJF3Fk9k8321.jpg_320x200.jpg

oYYBAFbO0EqAOSNnAACJF3Fk9k8321.jpg_320x200.jpg

2420 ms

oYYBAFbVb6-AVCsgAACr91JZKzM587.jpg_320x200.jpg

oYYBAFbVb6-AVCsgAACr91JZKzM587.jpg_320x200.jpg

2088 ms

1ebb6a8fbd5030cc9a4526691a25a2e841bfa35c.jpg

1ebb6a8fbd5030cc9a4526691a25a2e841bfa35c.jpg

2092 ms

0eb0d0389fc58f7bcec873656c386021e67b2016.jpg_320x200.jpg

0eb0d0389fc58f7bcec873656c386021e67b2016.jpg_320x200.jpg

2116 ms

6c2fa9395e0067b1eab969ccfa7586fe51ec022a.jpg

6c2fa9395e0067b1eab969ccfa7586fe51ec022a.jpg

2142 ms

a14a21994a430b78f40cc95d274d2cbda2de9c53.jpg_320x200.jpg

a14a21994a430b78f40cc95d274d2cbda2de9c53.jpg_320x200.jpg

2128 ms

651a73ed19a64121933597329af156ab86e25e88.jpg_320x200.jpg

651a73ed19a64121933597329af156ab86e25e88.jpg_320x200.jpg

2132 ms

daf89de4d9aad0611ef9489ff9ddc5222c91973f.jpg_320x200.jpg

daf89de4d9aad0611ef9489ff9ddc5222c91973f.jpg_320x200.jpg

1355 ms

24fc3b45e729910e763b067e2aedecbc8db558d1.jpg_320x200.jpg

24fc3b45e729910e763b067e2aedecbc8db558d1.jpg_320x200.jpg

1425 ms

5c4d48a7f273887cb90f3e4fc2072b88d032830f.jpg_320x200.jpg

5c4d48a7f273887cb90f3e4fc2072b88d032830f.jpg_320x200.jpg

1507 ms

d2f1eddf29119d068b1a335c60b11ecff8886946.jpg_320x200.jpg

d2f1eddf29119d068b1a335c60b11ecff8886946.jpg_320x200.jpg

1959 ms

4aaf207060b8fa1fa021e90d77dc856b9dc18abe.jpg_320x200.jpg

4aaf207060b8fa1fa021e90d77dc856b9dc18abe.jpg_320x200.jpg

1402 ms

3a39645476fd2c33cd2c185c0bc810b54fed2afd.jpg_320x200.jpg

3a39645476fd2c33cd2c185c0bc810b54fed2afd.jpg_320x200.jpg

1413 ms

f3fb8de8912315bca99a13a3f2b98bb1d0ab85a7.jpg_320x200.jpg

f3fb8de8912315bca99a13a3f2b98bb1d0ab85a7.jpg_320x200.jpg

2115 ms

ec5c08bb97a012e673e7c7a026e43abc.gif

ec5c08bb97a012e673e7c7a026e43abc.gif

2107 ms

6e27450fa6f15cd950769ceb0b579fe6.jpg

6e27450fa6f15cd950769ceb0b579fe6.jpg

1956 ms

7afff1bb227a9384256b1ee06822a142.jpg

7afff1bb227a9384256b1ee06822a142.jpg

1278 ms

5c4d48a7f273887cb90f3e4fc2072b88d032830f.jpg_320x200.jpg

5c4d48a7f273887cb90f3e4fc2072b88d032830f.jpg_320x200.jpg

1330 ms

766b56d4e75904a6e7903dba702c7a9cfd3edd20.jpg_320x200.jpg

766b56d4e75904a6e7903dba702c7a9cfd3edd20.jpg_320x200.jpg

1469 ms

v_pg.png

v_pg.png

90 ms

oYYBAFbgKZSAMGkcAADG-VK8uvE681.jpg_320x200.jpg

oYYBAFbgKZSAMGkcAADG-VK8uvE681.jpg_320x200.jpg

2038 ms

32b341698c08a8990401505f93d4295b6a6872b8.jpg_320x200.jpg

32b341698c08a8990401505f93d4295b6a6872b8.jpg_320x200.jpg

2001 ms

oYYBAFaVDe6ADmhZAAEHj20x4XY276.jpg_320x200.jpg

oYYBAFaVDe6ADmhZAAEHj20x4XY276.jpg_320x200.jpg

2014 ms

67c88931acc3a5f467ebe098c92e82ced6657511.jpg_320x200.jpg

67c88931acc3a5f467ebe098c92e82ced6657511.jpg_320x200.jpg

1435 ms

8f7f08f140328a62eb78685163ae8ab5932f3b63.jpg_320x200.jpg

8f7f08f140328a62eb78685163ae8ab5932f3b63.jpg_320x200.jpg

1299 ms

f36782939218fb445756515323fcf5c52f43a267.jpg_320x200.jpg

f36782939218fb445756515323fcf5c52f43a267.jpg_320x200.jpg

1310 ms

06198f5e3253e0f74fc583bb4a4e0ede5cefe2e5.jpg_320x200.jpg

06198f5e3253e0f74fc583bb4a4e0ede5cefe2e5.jpg_320x200.jpg

1716 ms

0309ccac31b89f7a2cc7d3ec24d2bd8692de8235.jpg_320x200.jpg

0309ccac31b89f7a2cc7d3ec24d2bd8692de8235.jpg_320x200.jpg

1990 ms

9ae8d5ac782243a7c0519a8ede7a19ad09d2ce26.jpg

9ae8d5ac782243a7c0519a8ede7a19ad09d2ce26.jpg

2038 ms

5563abb4561def51d8a866d0168a187cb2d010cc.jpg_320x200.jpg

5563abb4561def51d8a866d0168a187cb2d010cc.jpg_320x200.jpg

1254 ms

91406862c1f789fb5863d5a8eba059bae9e78321.jpg_320x200.jpg

91406862c1f789fb5863d5a8eba059bae9e78321.jpg_320x200.jpg

1388 ms

84bad0b8e0779652ff53d8e59e454b71f9e7fb28.jpg_320x200.jpg

84bad0b8e0779652ff53d8e59e454b71f9e7fb28.jpg_320x200.jpg

1431 ms

f1a11b0f93f48184b22c75bd0c24a7fd1360781d.jpg_320x200.jpg

f1a11b0f93f48184b22c75bd0c24a7fd1360781d.jpg_320x200.jpg

1845 ms

icons1.png

icons1.png

165 ms

def11983e9c8b2d181ce41e4cc184d02d05106a1.jpg_320x200.jpg

def11983e9c8b2d181ce41e4cc184d02d05106a1.jpg_320x200.jpg

1980 ms

5d10f45bc594d1c68ec1e5dce4be6ce8ce93ad4a.jpg_320x200.jpg

5d10f45bc594d1c68ec1e5dce4be6ce8ce93ad4a.jpg_320x200.jpg

2045 ms

fbcb2f4e8e54ceed08ac67aec0ff6d416201f636.jpg_320x200.jpg

fbcb2f4e8e54ceed08ac67aec0ff6d416201f636.jpg_320x200.jpg

1986 ms

bili_quick_login.js

bili_quick_login.js

424 ms

8e9f178737303a8dd36d971a2d7416c9.jpg

8e9f178737303a8dd36d971a2d7416c9.jpg

1572 ms

bacd37d5b322905292a45cf4c5a0ea05.jpg

bacd37d5b322905292a45cf4c5a0ea05.jpg

876 ms

211dc0e6c7be6ab0ba06ac39cc4f2cf9.jpg

211dc0e6c7be6ab0ba06ac39cc4f2cf9.jpg

1225 ms

6d54187801329131bd02e658bee688d2.jpg

6d54187801329131bd02e658bee688d2.jpg

849 ms

stat.htm

stat.htm

394 ms

f4fb0c830830c08dab0f4ec3ae875359.jpg

f4fb0c830830c08dab0f4ec3ae875359.jpg

842 ms

oYYBAFcB46WAS-OoAADqoUnN1dM813.jpg

oYYBAFcB46WAS-OoAADqoUnN1dM813.jpg

841 ms

oYYBAFcB5AaAbIAqAAE6KBNzxwo963.jpg

oYYBAFcB5AaAbIAqAAE6KBNzxwo963.jpg

819 ms

oYYBAFcB5m-ABVZEAAC3gyOHNww564.jpg

oYYBAFcB5m-ABVZEAAC3gyOHNww564.jpg

793 ms

oYYBAFb1OJCAOGZYAABbmC5HV3k649.jpg

oYYBAFb1OJCAOGZYAABbmC5HV3k649.jpg

778 ms

Accessibility Review

bilibili.tv accessibility score

62

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

bilibili.tv best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

bilibili.tv SEO score

77

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

High

robots.txt is not valid

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bilibili.tv can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Bilibili.tv main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

bilibili.tv

Open Graph description is not detected on the main page of Bilibili. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: